i donno if the word " jerky " is the correct way to explain my problem but when in 1st gear as i leave from a stop around 2800 rpm and 4500 the car feels like its bouncing as like if im on and off the gas , but this is with slight depressed gas pedal. I tried doing it with the A/c on and off same deal. I dont know if its a problem with the x drive or a differential bushing. If any of you guys have input on this please chime in